package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {
    //动态条件查询
    List<ShoppingCart> list(ShoppingCart shoppingCart);

/**
 * 修改购物车中商品的数量
 */
@Update("update shopping_cart set number = #{number} where id = #{id}")
    void updateNumberById(ShoppingCart shoppingCart);

    /**
     * 插入购物车数据
     * @param shoppingCart
     */
    @Insert("insert into shopping_cart (name,user_id, dish_id, setmeal_id,dish_flavor, number, amount,image,create_time) " +
    "values(#{name}, #{userId}, #{dishId},#{setmealId}, #{dishFlavor},#{number},#{amount},#{image},#{createTime})"
    )
    void insert(ShoppingCart shoppingCart);

    /**
     * 根据用户删除购物车数据
     * @param userId
     */
    @Delete("delete from shopping_cart where user_id = #{userId}")
    void deleteByUserId(Long userId);

    /**
     * 批量插入购物车数据
     *
     * @param shoppingCartList
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);
}
